feat(versal): add platform specific testcase

Add common platform test to read the PM-API version and Chip ID.
Specify TESTS=versal in make command. This will append the versal specific
tests to standard tests

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Running test suite 'AMD-Xilinx tests'
Description: AMD-Xilinx common platform tests

> Executing 'Read PM API Version'
  TEST COMPLETE                                                 Passed
test_pmapi_version PM-API Version : 1.0

> Executing 'Get Platform Chip ID'
  TEST COMPLETE                                                 Passed
test_get_chipid Idcode = 0x14ca8093 Version = 0x302020

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Signed-off-by: Akshay Belsare <Akshay.Belsare@amd.com>
Change-Id: I33fbdd42427fd0913001b83990e98b8ecbcc2282
3 files changed